Today, we went over one of the questions on the homework about early warning systems for earthquakes, then we carried on working on our buildings for the double period. That's what we did for the rest of the periods. Most people have at least their first floor up and some have more than that. Also, some people are starting to run out of wood, so if you have spare wood, share it :) Tomorrow we have a quiz on what we've learnt so far about earthquakes - seismic waves and finding the distance to the epicenter from seismographs.
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